It is just that kind of fleshy substance one would suppose to belong to such trees, and one can scarcely resist the impression that it is the bark. Examined by the lens it appears to be thickly studded with small white crystals, strewed about. [Picture: Fossil tree] [Picture: Fossil bark] Interlacing each other are Calamites, the giant representatives of our mares-tail which still flourishes near in damp places on the surface. The following representation will afford an idea of the gigantic proportions they then attained. They are to be found at all stages of growth; sometimes with their central pith, surrounded by a ligneous cylinder, divided by medullary rays, and having a thick bark. These reed-like plants were of course suited to the moist condition then prevailing, and assumed magnificent proportions. [Picture: Calamites] The following is the section as it now appears, commencing at the surface and taking the measures in a descending order. Below the turf,— ft. in. 1 Yellow clay 4 0 2 Coal Smut; (might represent Sill, coal) 1 0 3 Clunch 1 0 4 Vigor coal 0 10 5 Ganey coal rock (shale) 1 0 6 Ganey coal 1 3 7 Linseed earth (A brown soapy kind of clay) 1 0 8 Best coal and middle coal (These are 2 0 separated by a parting which diminishes from 10 inches on the west to 2 in. on the east.) 9 Fine clunch 1 0 10 Clod coal 2 0 11 Clunch with roots and plants, and nodules 5 0 of ironstone at bottom 12 Little flint coal 2 0 13 Little flint rock (with prostratetrees and 27 0 petroleum) 14 Crawstone crust, with upright trees and roots embedded. Total 49 11